package cn.com.shbs.Config;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;


/**
 * 普通类调用Spring bean对象：
 * 说明：
 * 1、此类需要放到App.java同包或者子包下才能被扫描，否则失效。
 * @author Administrator
 */

@Component
public class SpringUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext = null;

    private static Calendar gregorianCalendar = null;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringUtil.applicationContext == null){
            SpringUtil.applicationContext  = applicationContext;
        }
//        System.out.println("---------------------------------------------------------------------");
//        System.out.println("---------------------------------------------------------------------");
//        System.out.println("---------------com.example.order.util.SpringUtil------------------------------------------------------");
//        System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========");
//        System.out.println("---------------------------------------------------------------------");

    }

    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);

    }

    //通过class获取Bean.
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }


    public static String getDayAfter(String data){
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd");/*** 加一天*/
        Calendar calendar = null;
        try {
            Date dd = df.parse(data);
            calendar = Calendar.getInstance();
            calendar.setTime(dd);
            calendar.add(Calendar.DAY_OF_MONTH, 1);//加一天
        }catch (Exception e){
            e.printStackTrace();
        }
        return df.format(calendar.getTime());
    }

}